During an isothermal expansion,a confined ideal gas does $-150 \, J$ of work against its surroundings. This implies that

What is the value of the specific heat of a gas during an isothermal process?

$A$ $500 \Omega$ resistor connected to an external battery is placed inside a thermally insulated cylinder fitted with a frictionless piston. The cylinder contains an ideal gas. $A$ current $i$ of $200 \text{ mA}$ flows through the resistor as shown in the figure. The mass of the piston is $10 \text{ kg}$. Assuming $g = 10 \text{ m/s}^2$, the speed at which the piston will move upward, due to heat dissipated by the resistor, so that the temperature of the gas remains unchanged is (in $\text{ cm/s}$)

In an isothermal change,the change in pressure and volume of a gas can be represented for three different temperatures $T_3 > T_2 > T_1$ as:

When an ideal gas is compressed isothermally,its pressure:

For the $P-V$ diagram given for an ideal gas,which of the following correctly represents the $T-P$ diagram?