First slide

Gaseous state

Question

If an ideal gas is heated at constant pressure:

Moderate

A

the volume increases
B

the mass of gas remains same
C

the kinetic energy of the molecules increases
D

attraction forces between gas particles increases

Solution

$L- T at constant P$
$\begin{aligned} V \cdot T at constant P \\ KE = \frac{3}{2} RT (1 mole) \end{aligned}$
as volume increases attraction between molecules decreases

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