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lakkis [162]
2 years ago
15

What is the mass of an object that has a total heat loss of 550. cal, a specific heat of

Chemistry
1 answer:
Galina-37 [17]2 years ago
4 0

Answer:

the mass is .587 J/g°C

Explanation:

................

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A balloon contains 0.5 L of air at 101.5 kPa. You squeeze it to a volume of 0.25 L. What is the pressure of air inside the ballo
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The answer would be D. 203kPa




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3 years ago
At 35°C and 2 atm of pressure, the volume of gas is 200 ml. If the temperature changes to
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Answer:

V₂ = 106.5 mL

Explanation:

Given data:

Initial volume =200 mL

Initial pressure = 2 atm

Initial temperature = 35 °C (35 +273 = 308 K)

Final temperature = 55°C (55+273 = 328 K)

Final volume = ?

Final pressure = 4 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 2 atm ×200 mL × 328 K / 308 K ×4 atm

V₂ = 131200 atm .mL. K / 1232 K.atm

V₂ = 106.5 mL

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2 years ago
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Explanation:

Mg+NaF. NaF+Mg

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