1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dimaraw [331]
3 years ago
14

5. 54 J of heat is required to raise the temperature of a 2.47g unknown substance from 17.10C to 46.70C. a) Calculate the specif

ic heat of the substance b) What is the substance?
Chemistry
1 answer:
musickatia [10]3 years ago
5 0
<h3>upemnavsi wiwnownivv</h3>
You might be interested in
One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 8.00 liters against a constant external pressure
Leya [2.2K]

Answer : The work done on the surroundings is, 709.1 Joules.

Explanation :

The formula used for isothermally irreversible expansion is :

w=-p_{ext}dV\\\\w=-p_{ext}(V_2-V_1)

where,

w = work done

p_{ext} = external pressure = 1.00 atm

V_1 = initial volume of gas = 1.00 L

V_2 = final volume of gas = 8.00 L

Now put all the given values in the above formula, we get :

w=-p_{ext}(V_2-V_1)

w=-(1.00atm)\times (8.00-1.00)L

w=-7L.atm=-7\times 101.3J=-709.1J

The work done by the system on the surroundings are, 709.1 Joules. In this, the negative sign indicates the work is done by the system on the surroundings.

Therefore, the work done on the surroundings is, 709.1 Joules.

4 0
3 years ago
We can predict that summer will follow spring. T or F
Romashka-Z-Leto [24]

Answer:

true

Explanation:

5 0
3 years ago
Read 2 more answers
In a chemical reaction
SSSSS [86.1K]

Answer:

A) The atoms of the reactants unbond, rearrange and then rebond to form the products

Explanation:

Using method of elimination:

A) The atoms of the reactants unbond, rearrange and then rebond to form the products

This is the correct option. Chemical reactions involves breaking and forming of new bonds.

B) Some atoms disappear while others multiply to form the products

This option is incorrect. Atoms do not disappear

C) The atoms of the reactants always stay together to form the products

This option is incorrect. The bonds between the atoms in the reactants must first be broken before products can be formed.

D) New atoms are formed which combine to make the products

This option is incorrect. Atoms do not just form out of nowhere.

3 0
3 years ago
How does the movement of the continents from Pangaea to present day relate to the age of the ocean floor’s rocks along the mid o
inna [77]

Answer:

james madison

Explanation:

4 0
3 years ago
Is the night sky divided into contellations?<br><br><br>Is a light-Year is a measurement of time?
inessss [21]

-Yes, it's divided into 88 consellations.


-Yes, it's a unit of astronomical distance equivalent to the distance that light travels in one year

5 0
3 years ago
Other questions:
  • If you have 8.943 L of carbon monoxide gas at SATP, how many moles would it contain?
    15·1 answer
  • If 1.2 kilograms of rust forms on a bridge in 5 days, what should be the rate of reaction in grams per hour?
    12·1 answer
  • Which element has the strongest attraction for electrons?
    13·1 answer
  • A sample of tin (Cp = 0.227 J/g•°C) is placed in a freezer. Its temperature decreases from 15.0°C to −10.0°C as it releases 543
    8·2 answers
  • To dilute a HCl solution from 0.400 M to 0.100 M the final volume must be
    5·2 answers
  • A 75 g piece of gold (Au) at 1000 K is dropped into 200 g of H2O at 300K in an insulatedcontainer at 1 bar. Calculate the temper
    15·1 answer
  • Number 4 Please Help!!!!
    5·1 answer
  • State two applications of simple distillation of separating mixture​
    7·1 answer
  • ASAP PLLEEASE HURYYYYYYYYYYRRRRRRRRRRRRYY (NO FILES FOR ME NEEDING TO DOWNLAOD PLEASE!)
    10·2 answers
  • Pollutants may be natural or man-made true or false​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!