Ask Question
25 February, 01:56

425 mL of neon gas at - 12°C and 788 mmHg

expands into a 2.40 L container while the

pressure decreases to 577 mmHg. What is the

temperature of the gas in °C?

+3
Answers (1)
  1. 25 February, 02:14
    0
    806.23 °C

    Explanation:

    The question requires we calculate the new temperature of the gas in °C.

    We are given;

    Initial volume of neon gas, V₁ = 425 mL or 0.425 L Initial temperature of neon gas, T₁ = - 12°C

    When doing questions on gas law, we always use temperature in Kelvin.

    To convert temperature from °C to Kelvin we always use;

    K = °C + 273

    Therefore, Initial temperature, T₁ = 261 K

    Initial Pressure, P₁ = 788 mmHg New pressure of the gas, P₂ = 577 mmHg New volume of the gas, V₂ = 2.40 L

    To calculate the new temperature, we are going to use the combined gas equation.

    According to the combined gas law, P₁V₁/T₁ = P₂V₂/T₂ Rearranging the equation;

    T₂ = P₂V₂T₁ / P₁V₁

    Therefore;

    T₂ = (577 mmHg * 2.4 L * 261 K) : (788 mmHg * 0.425 L)

    = 1079.226 K

    = 1079.23 K

    But, °C = K - 273

    = 1079.23 K - 273

    Therefore, T₂ = 806.23 °C

    Therefore, the new temperature is 806.23°C
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “425 mL of neon gas at - 12°C and 788 mmHg expands into a 2.40 L container while the pressure decreases to 577 mmHg. What is the temperature ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers