STANDARD Physics Pressure of Gas MCQ Question
The mass of a hydrogen molecule is 3.32 × 10⁻²⁷ kg. If 10²³ hydrogen molecules strike, per second, a fixed wall of area 2 cm² at an angle of 45° to the normal, and rebound elastically with a speed of 10³ m s⁻¹, then the pressure on the wall is nearly
2.35 × 10³ N m⁻²
4.70 × 10³ N m⁻²
2.35 × 10² N m⁻²
4.70 × 10² N m⁻²
Correct Answer
Detailed Explanation
The pressure is calculated using the formula: Pressure = (2 × n × m × v × cos 45°) / Area. Substituting the given values, we find the pressure to be 2.35 × 10³ N m⁻².
Found an issue with this question?
Related Questions
More from
What is the root mean square speed \( v_{rms} \) of a gas molecule at a temperature \( T = 300 \) K, if the molecular mass \( m \) is \( 28 \times 10^...
A diagram shows a sealed container with an ideal gas at standard temperature and pressure (STP). The diagram includes arrows representing molecular mo...
Assertion (A): The distribution of molecular speeds in a gas remains constant in a state of equilibrium. | Reason (R): Collisions between molecules ch...