112年hce_kmu — 物理及化學

共 90 題 · 含 AI 詳解

#1 Which unit is not the SI (international system of units) derived unit? › #2 Suppose a block is placed on a rough surface inclined relative to the horizontal… › #3 An escalator is used to move 20 people ($60\text{ kg}$ each) per minute from the… › #4 An air-bag company is designing a new product. The specification requires passen… › #5 The electric inductance $L$ is defined as the magnetic flux $\Phi_B$ divided by… › #6 A hydraulic press has one piston of diameter 2 cm and the other piston of diamet… › #7 The position of a particle is given by the expression $x = 4 \cos( 3 \pi t + \pi )$… › #8 The average molecular translational kinetic energy of a gas molecule is ______.… › #9 A gas in a cylinder starts from initial state $i$ to finial state $f$ through 4… › #10 A resistor of unknown resistance and a $15 \Omega$ resistor are connected across… › #11 A conducting sphere of radius $R$ contains a positive charge. Which figure corre… › #12 Which equation is not one of Maxwell's equations? › #13 The flux of the electric field $(24)\hat{\imath} + (30)\hat{\jmath} + (-16)\hat{k}\text{ N/C}$… › #14 An object is 12 cm in front of a concave spherical mirror, and the image is 3 cm… › #15 A light from medium A with refractive index ($n_A$) enters medium B and medium C… › #16 Complete the following nuclear reaction: $\ce{^{238}_{92}U + ^{12}_{6}\Box -> ^{A}_{B}Cf + 6 ^{1}_{0}n}$… › #17 An anion has the following Lewis structure: What is the possible identity for el… › #18 Determine Lewis base strength in the gas phase of following amines: › #19 Using the data below, calculate the normal boiling point of liquid A at 1 atm, A… › #20 Which of the followings octahedral complexes will not form precipitate of AgI at… › #21 How to make a p-type semiconductor? › #22 Based on reaction shown as below, the two complexes can be classified into which… › #23 What is the product called after glycine and alanine undergo condensation reacti… › #24 Which compound does not possess a $sp^2$ hybridized orbital? › #25 Consider the following orderings. Which of these gives a correct trend in ioniza… › #26 What is the correct order of the following bonds in terms of increasing polarity… › #27 Which of the following electron configurations is incorrect? › #28 How many moles of Ca(NO$_3$)$_2$ must be added to 0.5 L of a 0.4 M KF solution t… › #29 For the reaction below, $\ce{PCl_{3(g)} + Cl_{2(g)} <=> PCl_{5(g)}} \Delta G^o = -92.5\text{ kJ, at 298K}$… › #30 Which of the following species needs resonance to adequately describe its struct… › #31 An object of mass $m$ is sliding with speed $v$ at some instant across a level t… › #32 A force acting on an object moving along the $x$ axis is given by $F_x = (14x - 3x^2)\text{ N}$… › #33 The block shown in the figure is released from rest when the spring is stretched… › #34 A police crime lab is trying to determine whether someone was murdered or died a… › #35 A 3 kg particle moves to the right at 4 m/s as shown in the figure. The magnitud… › #36 A particle moves in the $xy$ plane, starting from the origin at $t = 0$ with an… › #37 A grindstone increases in an angular speed from 4 rad/s to 12 rad/s in 4 s. Thro… › #38 A 1 kg copper block and a 6 kg steel block are connected by a light string over… › #39 A car travels at a constant speed of 60 km/hr on a level circular turn of radius… › #40 A 5 kg ball is held in the hand as shown in the figure, with the arm horizontal… › #41 If middle C (262 Hz) and C$^\#$ (277 Hz) are played together, it would cause int… › #42 Tension is maintained in a string as in the figure. The observed wave speed is $v = 24\text{ m/s}$… › #43 When an ambulance passes in front of an observer, the sound frequency is 440 Hz… › #44 Under ambient conditions, which gas has the adiabatic ratio of molar heat capaci… › #45 A 50 m bridge is made with segments of concrete. If the linear expansion coeffic… › #46 A Carnot engine is operating at its theoretical maximum efficiency of 60\%. If t… › #47 A tuning fork is known to vibrate with frequency 262 Hz. When it is sounded alon… › #48 Determine the energy stored in $C_2$ when $C_1 = 15 \mu\text{F}$, $C_2 = 10 \mu\text{F}$… › #49 A solid, insulating sphere of radius $a$ has a uniform charge density throughout… › #50 Two long straight current-carrying parallel wires cross the $x$ axis and carry c… › #51 A certain capacitor has a capacitance of $5 \mu\text{F}$. After it is charged to… › #52 A plane with a wing length of 50 m is flying westward where the downward compone… › #53 Implanted medical devices are often charged by transcutaneous energy transfer (T… › #54 A beam of unpolarized light of intensity $I_0$ passes through four successive id… › #55 When sitting in an airplane at an altitude of 10 km, you look down on the ground… › #56 A spaceship S$_1$ is moving away from us at a speed of 0.8 c. Another spaceship… › #57 Silicon (Si) is a semiconductor material whose properties fit perfectly in solar… › #58 The wave function $\psi(x)$ of a particle confined to $0 \leq x \leq L$ is given… › #59 A light of wavelength 400 nm falls on a metal surface having a work function 1.7… › #60 The Balmer series for the hydrogen atom corresponds to electronic transitions th… › #61 Which structure is not considered to have aromaticity? › #62 Solid KF has a lattice energy of $-804\text{ kJ/mol}$ and a heat of solution (in… › #63 The reaction $2\ce{NO2 -> 2NO + O2}$ obeys the rate law… › #64 Today's automatic sunglasses utilize the following rearrangement reaction betwee… › #65 Water desalination is a method to solve the problem of drought resulting from cl… › #66 Consider the following reaction: A$_2$ + B$_2$ $\rightarrow$ 2AB $\Delta H = -235\text{ kJ}$… › #67 Which statement is correct? › #68 You mix 265.0 mL of 1.20 $M$ lead(II) nitrate with 300.0 mL of 1.55 $M$ potassiu… › #69 Follow the balanced equation: N$_2(g)$ + 3H$_2(g)$ $\rightarrow$ 2NH$_3(g)$ An e… › #70 One beaker has 75.0 mL of a 2.00 $M$ solution of Na$_2$CrO$_4(aq)$. Another one… › #71 Four identical 1.0 L flasks contain the gases He, Cl$_2$, CH$_4$, and NH$_3$, ea… › #72 The valve between the 3.00 L bulb, in which the gas pressure is 2.00 atm, and th… › #73 The concentration of a monoprotic acid is "a" $M$ and the degree of dissociation… › #74 How many chiral centers are in the following structure? › #75 Compound X and Y contain two elements A and B only. 3.0 g of compound X contains… › #76 What is the pH value of a 0.010 $M$ solution of sodium azide (NaN$_3$)? The $K_a$… › #77 What is the net number of octahedral holes contained in the close packing of sph… › #78 Reaction of potassium metal with excess O$_2(g)$ leads to KO$_2(s)$. Determine t… › #79 Determine the point group of the molecules shown below? › #80 Which charge of NO would have a bond order of 3? › #81 What is the energy required to excite the electron in the hydrogen atom from the… › #82 Using the data shown as follows to calculate $\Delta G^\circ$ for the reaction (… › #83 The net ionic equation that potassium iodide reacts with potassium iodate in the… › #84 How many protons, neutrons, and electrons does the ion $^{18}$O$^{2-}$ have? › #85 Nature rubber is a polymer derived from isoprene. What is the correct way to sho… › #86 Which compound has the highest boiling point among the following structures? › #87 What are the products of the following reaction? › #88 Identify which of the reactions listed below are reactions between Brøsted–Lowry… › #89 Which of the following molecules has zero net dipole moment? › #90 What is the product of the transformation listed below? ›