Calculating Heat Required to Heat Water from 15.5°C to 85°C

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SUMMARY

The discussion focuses on calculating the heat required to raise the temperature of 90g of water from 15.5°C to 85°C using the formula QH2O = mH2O * cH2O * ΔTH2O. The specific heat of water is established as 1 cal/g°C. The total heat required is calculated by determining the temperature change (ΔTH2O) and applying the mass and specific heat values. Additionally, the impact of the aluminum vessel's mass (178g) on the overall heat calculation is raised as a consideration.

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  • Understanding of specific heat capacity
  • Familiarity with the formula for calculating heat transfer
  • Basic knowledge of temperature scales (Celsius)
  • Concept of mass in thermodynamic calculations
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  • Calculate the total heat required using QH2O = mH2O * cH2O * (T2 - T1)
  • Explore the heat capacity of aluminum to understand its effect on the heating process
  • Investigate the concept of thermal equilibrium in mixed systems
  • Learn about calorimetry and its applications in heat transfer calculations
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kimkibun
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Homework Statement



An aluminum vessel hose mass is 178g contains 90g of water at 15.5°C. How many calories of heat are required to bring the water to a final temperature of 85°C? The specific heat of water is 1cal/g°C.

Given:
mAl=178g
mH2O=90g
T1=15.5°C
T2=85°C
cH2O=1cal/g°C

Homework Equations


Im planning to use this formula for heat quantity

QH2O=mH2OcH2OΔTH2O


The Attempt at a Solution

 
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kimkibun said:

Homework Statement



An aluminum vessel hose mass is 178g contains 90g of water at 15.5°C. How many calories of heat are required to bring the water to a final temperature of 85°C? The specific heat of water is 1cal/g°C.

Given:
mAl=178g
mH2O=90g
T1=15.5°C
T2=85°C
cH2O=1cal/g°C

Homework Equations


Im planning to use this formula for heat quantity

QH2O=mH2OcH2OΔTH2O


The Attempt at a Solution


What about the aluminum vessel? How can you heat the water without also heating the vessel?
 

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