Chemistry College

The reversible reaction, 2NO{g) ⇌ N2 (g) + O2 (g), would be classified as a __________________ reaction.
homogeneous
heterogeneous
endothermic

Answers

Answer 1
Endothermic!!! Energy be broken

Related Questions

What is the molar mass of an unknown gas with a density of 2.00 g/L at 1.00 atm and 25.0 °C?

Answers

Answer:

48.9 g/mol

Explanation:

n=(atm x v)/(.08206 x 298)

The molar mass of the gas 49.0 g/mol.

Given:

Unknown gas with a density of 2.00 g/L at 1.00 atm and 25.0 °C.

To find:

The molar mass of an unknown gas.

Solution:

The mass of gas = m

The volume of the gas =V

The molar mass of the gas = M

The density of the gas = d = 2.00 g/L

[tex]d=\frac{m}{V}[/tex]

The pressure of the gas = P

The temperature of the gas T = 25.0 °C = 25.0+273.15 K=298.15 K

The ideal gas equation:

[tex]PV=nRT\\\\PV=\frac{\text{Mass of gas(m)}}{\text{Molar mass of gas(M)}}RT\\\\PM=\frac{m}{V}RT \\\\PM=dRT\\\\1 atm\times M=2.00 g/L\times 0.0821 atm L/molK\times 298.15 K\\\\M=\frac{2.00 g/L\times 0.0821 atm L/molK\times 298.15 K}{1 atm}\\\\M=48.96 g/mol \approx 49.0 g/mol[/tex]

The molar mass of the gas 49.0 g/mol.

Learn more about an ideal gas equation here:

brainly.com/question/1056445?referrer=searchResults

An astronaut has a mass of 80kg how much mass does he weigh in Mars

Answers

I think they would weigh 261.33 Newton’s.

Answer:

26.66kg

Explanation:

If a person has a mass of 80kg, then they will weigh 80kg x 9.8m/s^2 or 784 Newtons on the Earth. That same person would weigh 80kg x 9.8m/s^2/3 or 261.33 Newtons on Mars, which the person might think was 26.66 Kg (although he would be incorrect since his mass has not changed).

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