MCAT General Chemistry Question 115: Answer and Explanation
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Question: 115
10. Given that the gases at the center of the sun have an average molar mass of 
compressed to a density of 
under 1.30 × 109 atm of pressure, what is the temperature at the center of the sun?
- A. 2.6 × 104 K
- B. 2.6 × 106 K
- C. 2.6 × 107 K
- D. 2.6 × 1010 K
Correct Answer: C
Explanation:
The ideal gas law can be modified to include density (ρ) because the number of moles of gas, n, is equal to the mass divided by the molar mass. Thus,
Isolating for temperature, we get:
