For an ideal gas, pressure is directly proportional to absolute temperature during a process. Statements: A: process is isochoric; B: work done is zero; C: internal energy increases when temperature increases. Choose the correct option.
Options

Question

For an ideal gas, pressure is directly proportional to absolute temperature during a process. Statements: A: process is isochoric; B: work done is zero; C: internal energy increases when temperature increases. Choose the correct option.

Options

G1 Physics · Accepted Answer

PV=nRT. If P∝T for fixed amount of gas, V is constant, so the process is isochoric and W=∫P dV=0. For an ideal gas U depends only on temperature, so U increases with T. All three statements are correct.