slimshady45 slimshady45

13-04-2020
Chemistry

contestada

PLEASE HELP ASAP!!!!
A 237-g piece of wire is heated, and the temperature of the wire changes from 25C to 107C. The amount of heat absorbed is 722 cal. What is the specific heat of the wire? Show all work, including the equation, and include units

Respuesta :

joseaaronlara joseaaronlara

13-04-2020

Answer:

The answer to your question is C = 0.037 cal/g°C

Explanation:

Data

mass of the wire = m = 237 g

temperature 1 = T1 = 25°C

temperature 2 = T2 = 107°C

Heat = Q = 722 cal

Specific heat = C

Process

1.- Write the formula to find the specific heat

Q = mC(T2 - T1)

-Solve for C

C = Q / m(T2 - T1)

2.- Substitution

C = 722 / 237(107 - 25)

3.- Simplification

C = 722 / 237(82)

C = 722 / 19434

4.- Result

C = 0.037 cal/g°C

Answer Link

Otras preguntas

A kid is on a stationary sled,on snowy ground with Us=0.125. It takes 71.2N of force to get the sled moving. How much normal force is acting?

At a particular point in orbit a satellite in an elliptical orbit h as a gravitational potential energy of 5000MJ with respect to Earth’s surface and a kinetic

One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A.

What is the volume of a 5.75-g object that has a density of 3.97 g/cm^3? a) 1.45 cm^3 b) 0.690 cm^3 c) 22.8 cm^3 d) 0.0438 cm^3 e) 5.75 cm^3

1. El Caribe es __. una tienda de computadoras un mercado un almacén 2. Los clientes no tienen que gastar mucho dinero porque __. no tienen mucho dinero van a c

Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to the reaction BaO2(s)+H2SO4(aq)⟶BaSO4(s)+H2O2(aq) How many m

URGENT!!! Alvin throws the

Which of the following statements is (are) false? (1). In general, the term expense is used for managerial purposes, while the term cost refers to external fina

Porter Co. began its business last year and issued 10,000 shares of common stock at $3 per share. The parvalue of the stock is $1 per share. During January of t

Suppose that a bank’s customer deposits $4,000 in her checking account. The required reserve ratio is 0.25. What are the required reserves on this deposit?