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Ivenika [448]
3 years ago
7

A researcher studying the nutritional value of a new candy places a 4.10-gram sample of the candy inside a bomb calorimeter and

combusts it in excess oxygen. the observed temperature increase is 2.95 °c. if the heat capacity of the calorimeter is 43.80 kj·k–1, how many nutritional calories are there per gram of the candy?
Physics
1 answer:
SIZIF [17.4K]3 years ago
7 0
Do mathe kdidfs ayr f yiouy wikl gret gpod furaced. gockt gaveg jatg fdhvsafd  gofdjvf ggdsnbg
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Which diagram is the best representation of gas molecules in a closed container? A. Diagram A B. Diagram B C. Diagram C D. Diagr
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3 years ago
A rigid tank contains nitrogen gas at 227 °C and 100 kPa gage. The gas is heated until the gage pressure reads 250 kPa. If the a
aleksley [76]

Answer:

 T₂ =602  °C

Explanation:

Given that

T₁ = 227°C =227+273 K

T₁ =500 k

Gauge pressure at condition 1 given = 100 KPa

The absolute pressure at condition 1 will be

P₁ = 100 + 100 KPa

P₁ =200 KPa

Gauge pressure at condition 2 given = 250 KPa

The absolute pressure at condition 2 will be

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P₂ =350 KPa

The temperature at condition 2 = T₂

We know that

\dfrac{T_2}{T_1}=\dfrac{P_2}{P_1}\\T_2=T_1\times \dfrac{P_2}{P_1}\\T_2=500\times \dfrac{350}{200}\ K\\

T₂ = 875 K

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5 0
3 years ago
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