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What is the effect of increasing the number of moles of a gas on its pressure at

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Question: What is the effect of increasing the number of moles of a gas on its pressure at constant volume and temperature?

Options:

  1. Pressure decreases
  2. Pressure increases
  3. Pressure remains constant
  4. Pressure becomes zero

Correct Answer: Pressure increases

Solution: 

According to the ideal gas law, increasing the number of moles (n) of a gas while keeping volume (V) and temperature (T) constant will increase the pressure (P).

What is the effect of increasing the number of moles of a gas on its pressure at

Practice Questions

Q1
What is the effect of increasing the number of moles of a gas on its pressure at constant volume and temperature?
  1. Pressure decreases
  2. Pressure increases
  3. Pressure remains constant
  4. Pressure becomes zero

Questions & Step-by-Step Solutions

What is the effect of increasing the number of moles of a gas on its pressure at constant volume and temperature?
  • Step 1: Understand the ideal gas law, which is represented by the equation PV = nRT.
  • Step 2: Identify the variables in the equation: P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature.
  • Step 3: Note that in this scenario, volume (V) and temperature (T) are kept constant.
  • Step 4: Recognize that if you increase the number of moles (n) of the gas, the left side of the equation (PV) must also increase to keep the equation balanced.
  • Step 5: Since volume (V) is constant, an increase in the number of moles (n) will result in an increase in pressure (P).
  • Step 6: Conclude that increasing the number of moles of a gas at constant volume and temperature will lead to an increase in pressure.
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