Answer : The temperature of gas is, 295 K
Explanation :
To calculate the temperature of gas we are using ideal gas equation:
where,
P = Pressure of gas = 1.21 atm
V = Volume of gas = 10.0 L
n = number of moles = 0.500 mole
R = Gas constant =
T = Temperature of gas = ?
Now put all the given values in above equation, we get:

Therefore, the temperature of gas is, 295 K
Inefficiency of the material or engine causes the output work of a machine to be less
than the input work. It is governed by the second law of thermodynamics wherein
no product of work can produce 100 percent efficiency. Only the Carnot engine
can produce a 100 percent effieciency.
Answer:
The answer to your question is: 8.31 x 10 ²² atoms
Explanation:
butane C₄H₁₀
carbon atoms in 2 g of butane
MW C₄H₁₀ = (4 x 12) + (1 x10) = 48 + 10 = 58 g
58 g of butane ------------------- 48 g of C
2 g of butane ----------------- x
x = (2 x 48) / 58 = 1.655 g of C
1 mol C ------------------- 12 g
x ------------------ 1.655 g
x = (1.655 x 1) / 12 = 0.14 mol of C
1 mol of C ------------------- 6.023 x 10 ²³ atoms
0.14 mol of C ---------------- x
x = ( 0.14 x 6.023 x 10 ²³) / 1
x = 8.31 x 10 ²² atoms