1.64 atm
PV = nRT —> P = nRT / V
n = 3 moles
R = 0.08206 L atm / mol K
T = 400 K
V = 60 L
P = (3)(0.08206)(400) / 60 = 1.64 atm
Balanced when there are equal numbers of each kind of atom
Answer:
333K
Explanation:
Answer is actually 333.15, but to round it off, is 333
Answer:
0.385J/g°C
Explanation:
Using the following formula;
Q = m. c. ∆T
Where;
Q = amount of heat (joules)
m = mass of substance (g)
c = specific heat capacity (J/g°C)
∆T = change in temperature (°C)
According to the provided information in this question;
Q = 318 cal
1 calorie = 4.184J
318 cal = 318 × 4.184 = 1330.512J
m = 279g
∆T = 27.2°C - 14.8°C = 12.4°C
Hence, using Q = m. c. ∆T
c = Q ÷ (m. ∆T)
c = 1330.512 ÷ (279 × 12.4)
c = 1330.512 ÷ 3459.6
c = 0.385
Therefore, the specific heat of copper is 0.385J/g°C
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