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laylac45531
20.05.2021 •
Chemistry
You have two tanks, one is 14L and the other is 3L. They are connected by a valve that can
open or close. Initially the 12L tank is full of He gas and the 3L tank is completely empty.
After opening the valve, what is the volume of the He gas?
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Ответ:
Answer is: the mass of a sample of aluminum is 9.45 grams.
ΔT = 100.1°C - 30.0°C.
ΔT = 70.1°C.; change in temperature of a sample of aluminium.
Cp(Al) = 0.900 J/g·°C; specific heat capacity for aluminium.
Q = 596 J; heat absorbed.
Q = m(Al) · ΔT · Cp(Al).
m(Al) = Q ÷ (ΔT · Cp(Al)).
m(Al) = 596 J ÷ (70.1°C · 0.900 J/g·°C).
m(Al) = 9.45 g; mass of aluminium sample.