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1181. If Cv = 5/2 R, Cp will be:

2/5 R
7-Feb
5/2 R
7/2 R

1182. An ideal gas has molar specific heat Cp at constant pressure. When the temperature of n moles is increased by ΔT the increase in the internal energy is:

nCpΔT
n(Cp - R) ΔT
n(Cp + R) ΔT
n(2Cp + R) ΔT

1183. First law of thermodynamics is mathematically represented as:

ΔQ – ΔW = ΔU
ΔW = ΔQ + ΔU
ΔW = ΔQ - ΔU
ΔQ = ΔW - ΔU

1184. Two bodies A and B of temperatures T_A = 100°C and T_B = 0°C are brought in thermal contact with each other. Which one in the followings is possible at thermal equilibrium?

T_a= 0°C, T_b= 100°C
T_a= 60°C, T_b= 50°C
T_a= 45°C, T_b= 45°C
T_a = 60°C, T_b= 40°C

1185. The thermal energy required to cause a unit temperature rise is called:

Heat capacity
Heat volume
Heat conductance
Heat energy/unit volume

1186. For three moles of a gas Cp − Cv is:

R
3R
3/2R
2/3R

1187. Which one is true about Cp and Cv:

Cp > Cv
Cv > Cp
Cv = Cp
both a & c are correct

1188. In molar specific heat, the equation Cp − Cv = R shows that:

Cp > Cv
Cp < Cv
Cp = Cv
Cp = constant

1189. First law of thermodynamics is based on:

Law of conservation of momentum
Law of conservation of mass
Law of conservation of charge
Law of conservation of energy

1190. The thermodynamic process during which the pressure is kept constant is called:

Isochoric process
Adiabatic process
Isobaric process
Isothermal process

1191. The Coulomb's force between two-point charges q1 and q2 is 3N, where distance between them is 3m. The charge q2 is

3 x 10^-3
2 x 10^-3
1 x 10^-3
6 x 10^-3

1192. Coulomb's law is given by the formula F = k q1 q2 / r^2. The magnitude of k having the unit of Nm^2 / C^2 for free space is

9 x 10^9
6 x 10^9
9.0 x 10^9
6.0 x 10^9

1193. Which of the following statement is true?

Electrostatic force inverse square law while gravitational force does not
Both gravitational force and electrostatic force are repulsive in nature
Gravitational force is much weaker than electrostatic force
Both electrostatic and gravitational force obey inverse square law

1194. The Coulomb's constant k depends upon

Nature of medium
System of units
Type of charge
Nature of medium and system of units

1195. As per Coulomb's law, the force of attraction or repulsion between two-point charges is directly proportional to

Sum of the magnitude of charges
Square of the distance between them
Product of the magnitude of charges
Cube of the distance

1196. A charged particle moves in a uniform electric field between two oppositely charged parallel metal plates. To calculate the force acting on the particle due to the electric field, which quantity is not required?

Particle charge
Particle speed
Plate separation
Potential difference between plates

1197. The Coulomb's law states

Force between two point charges is inversely proportional to the product of the charges and directly proportional to the square of the distance between them
Force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
Force between two point charges is directly proportional to the sum of charges and inversely proportional to the square of the distance between them
Force between two point charges is directly proportional to the product of the charges and the square of the distance between them

1198. Two similar point charges, each of 1 coulomb, placed in free space 1m apart, repel each other with a force of

8.85 x 10^9 N
1.602 x 10^-19 N
6.67 x 10^-11 N
9 x 10^9 N

1199. Which law explains the relation between amount of charges and force between them?

Ohm's law
Lenz's law
Coulomb's law
Ampere's law

1200. Consider three-point charges A, B, and C as shown in figure. If the resultant force on charge B due to charge A and charge C is 0.024 N, the direction of resultant force will be

Towards Charge A
Towards Charge C
Towards Charge B
Vertical to surface the charges are placed