Answered

From tech troubles to travel tips, IDNLearn.com has answers to all your questions. Join our knowledgeable community to find the answers you need for any topic or issue.

A substance has a specific heat capacity of 2.0 J/g °C. How many joules are needed to raise the temperature of 30.0 g of this substance from 0°C to15°C?
a. 1 J

b. -1 J

c. -900 J

d. 900 J

Sagot :

Nonono39idn

Answer:

g

Explanation:

know what you think about th can get it

09pqr4sTidn

Answer:

[tex]\Large \boxed{\sf 900 \ J}[/tex]

Explanation:

Use formula

[tex]\displaystyle \sf Energy\ (J)=mass \ (g) \times specific \ heat \ capacity \ (Jg^{-1}\°C^{-1}) \times change \ in \ temperature \ (\°C)[/tex]

Substitute the values in formula and evaluate

[tex]\displaystyle \sf Energy\ (J)=30.0\ g \times 2.0 \ Jg^{-1}\°C^{-1} \times (15\°C-0\°C)[/tex]

[tex]\displaystyle Q=30.0 \times 2.0 \times (15-0 )=900[/tex]

Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. Your questions deserve accurate answers. Thank you for visiting IDNLearn.com, and see you again for more solutions.