2 years ago

The first law of thermodynamics states that ΔE=Q-W. How is this also a statement of the principle of conservation of energy?

Chemistry

2 answers:

Korolek [52]2 years ago

6 0

Answer:

Explanation:

yaroslaw [1]2 years ago

4 0

Hello I took this test just now and got 100% your correct answer would be C. Hope this helps.

You might be interested in

At a pressure of 19.95kPa, 35.8g of carbon dioxide at a temperature of 27.5C would result in what volume of gas?

adell [148]

Answer:

volume of gas=101.94L

Explanation:

Suppose given gas follows the ideality nature of gas

PV=nRT

n=35.8/44mol=0.814 mol

P=0.197atm

T=27.5C=300.5K

R=0.0821atm/mol/K

after putting all value we get,

V=101.94L

volume of gas=101.94L

3 0

2 years ago

How much heat is needed to boil 3,000 mL of water at its boiling point, 100 C?

Karo-lina-s [1.5K]

Answer: 100C of heat is needed.

Explanation: That is the heating point of water

3 0

3 years ago

Use the following graph of a car traveling on a straight northerly path to answer this question. At what time would the

BARSIC [14]

Answer:

B 144.0 s is the best answer of this question

6 0

3 years ago

A 3.82L balloon filled with gas is warmed from 204.9K to 304.8 K.

likoan [24]

Given :

A 3.82L balloon filled with gas is warmed from 204.9K to 304.8 K.

To Find :

The volume of the gas after it is heated.

Solution :

Since, their is no information about pressure in the question statement let us assume that pressure is constant.

Now, we know by ideal gas equation at constant pressure :

$\dfrac{V_1}{V_2} = \dfrac{T_1}{T_2}\\\\\dfrac{3.82}{V_2}= \dfrac{204.9}{304.8}\\\\V_2 = \dfrac{304.8}{204.9} \times 3.82\\\\V_2 = 5.68 \ L$

Hence, this is the required solution.

3 0

2 years ago

What is the acceleration of an object if it goes from a velocity of +25m/s to rest in 5.0s?

kari74 [83]

Vf = Vi + at

0 m/s = 25 m/s + a(5sec)

-5 m/s2 = acceleration

5 0

3 years ago