Practice question

Given: A gas at 3 atm and 300 K has a volume of 10 litres. If the temperature rises to 900 K at constant pressure, what is the new volume? These values define the system as per NCERT data. Formula: Charles’ law: V_1/T_1 = V_2/T_2. This is standard NCERT relation. Substitution & Calculation: V_1 = 10 litres, T_1 = 300 K, T_2 = 900 K. V_2 = V_1 × T_2/T_1 = 10 × 900/300 = 30 litres. Result: The computed value matches expected outcome and confirms correct choice as per NCERT.