melsdior
Answered

Explore Westonci.ca, the top Q&A platform where your questions are answered by professionals and enthusiasts alike. Join our platform to connect with experts ready to provide precise answers to your questions in various areas. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Calculate: A. Mercury has a specific Heat Capacity of 0.14 J/goC. How much heat is needed to raise the thermometer temperature 15 oC to 95 oC. There is 5 g of mercury in the thermometer.

Sagot :

Sarah06109

Answer:

[tex]\boxed {\boxed {\sf 56 \ Joules}}[/tex]

Explanation:

We are given the mass, specific heat, and temperature, so we must use this formula for heat energy.

[tex]q=mc \Delta T[/tex]

The mass is 5 grams, the specific heat capacity is 0.14 Joules per gram degree Celsius. Let's find the change in temperature.

  • ΔT= final temperature - initial temperature
  • ΔT= 95°C - 15°C = 80°C

We know the variables and can substitute them into the formula.

[tex]m= 5 \ g \\c= 0.14 \ J/ g \ \textdegree C \\\Delta T= 80 \ \textdegree C[/tex]

[tex]q= (5 \ g )( 0.14 \ J/ g \ \textdegree C ) ( 80 \ \textdegree C)[/tex]

Multiply the first numbers. The grams will cancel.

[tex]q= 0.7 \ J/ \textdegree C(80 \ \textdegree C )[/tex]

Multiply again. This time the degrees Celsius cancel.

[tex]q= 56 \ J[/tex]

56 Joules of heat are needed.

Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.