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
LuckyWell [14K]
3 years ago
15

If 75 g of liquid water ( C = 4.18 j/g C ) in a calorimeter changes temperature from 25 C to 75 C, how much heat was transferred

Mathematics
2 answers:
Aleks [24]3 years ago
8 0

Answer:

The heat transferred is 157 kJ.

Step-by-step explanation:

Given : If 75 g of liquid water ( C = 4.18 j/g C ) in a calorimeter changes temperature from 25 C to 75 C.

To find: How much heat was transferred ?

Solution :  

Using the formula, q=mc\triangle T

Where,

q - heat absorbed

c  - the specific heat of the substance, in your case of water

ΔT  - the change in temperature, as the difference between the final temperature and the initial temperature.

We have given,

c=4.18 j/g C

m=75 g

ΔT= 75 C-25 C=50 C

Substitute the values in the formula,

q=(75)(4.18)(50)

q=157 kJ

Therefore, The heat transferred is 157 kJ.

levacccp [35]3 years ago
4 0
The answer is 157kJ

formula: q=mcT

q= 75 g x 4.18 J/goC x 50 oC
q= 157 kJ
You might be interested in
What do u do when the question says what is an area of the rectangle Like
Anastaziya [24]

Answer:

multiply

Step-by-step explanation:

Area is measured in square units such as square inches, square feet or square meters. To find the area of a rectangle, multiply the length by the width.

6 0
2 years ago
The derivative of y with respect to x, when y = 3e^5x - 2 is:
Ede4ka [16]
Answer: 15e^5x

Step - by - step

y=3e^5x - 2

By the sum rule, the derivative of 3e^5x - 2 with respect to x is d/dx [ 3e^5x ] + d/dx [-2].

d/dx [ 3e^5x ] + d/dx [ -2 ]

Evalute d/dx [ 3e^5x ]

Since 3 is constant with respect to x , the derivative of 3e^5x with respect to x is
3 d/dx [ e^5x ].

3 d/dx [ e^5x ] + d/dx [ -2 ]

Differentiate using the chain rule, which states that d/dx [ f(g(x))] is f' (g(x)) g' (x) where f(x) = e^x and g(x) = 5x.

To apply the Chain Rule, set u as 5x.
3 ( d/du [ e^u] d/dx [5x] ) + d/dx [ -2]

Differentiate using the Exponential rule which states that d/du [ a^u ] is a^u ln(a) where a=e.

3( e^u d/dx[5x] ) + d/dx [ -2 ]
Replace
3(e^5x d/dx [5x] ) + d/dx [ -2 ]
3(e^5x( 5 d/dx [x] )) + d/dx [ -2 ]

Diffentiate using the Power Rule which states that d/dx [x^n] is nx^n-1 where n=1.
3(e^5x(5*1)) + d/dx [-2]
3 ( e^5x * 5 ) + d/dx [-2]

Multiply 5 by 3
15e^5x + d/dx [-2]

Since -2 is constant with respect to x, the derivative of -2 with respect to x is 0.
15e^5x + 0
15e^5x
5 0
1 year ago
Jerimiah can type 300 words in 1/5 of an hour. How many words can he type in 1 hour
Arada [10]

Answer:

1500 words

Step-by-step explanation:

300 times 5 equals 1500.

5 0
3 years ago
If a bus travels at 48MPH how long will it take to be able to travel 60 miles
GrogVix [38]
It will take 1.25 hours
8 0
2 years ago
What is the simplified form of left parenthesis 27 x to the power of negative six end power y to the power of 12 end power right
Tanzania [10]
Hello,
Please, see the attached file,
Thanks.

5 0
3 years ago
Other questions:
  • On a bike trip, Erika rides 5 miles in the first 30 minutes and 13 miles in the next hour. What is her average rate of speed?
    10·2 answers
  • HELP PLEASE i give brainlist
    6·1 answer
  • Write the equation of the line that is parallel to the x-axis and goes through the point (1, 4).
    8·2 answers
  • Find the total surface area. A. 2,016 km² B. 6,156 km² C. 1,368 km² D. 165 km²
    12·1 answer
  • Help please and thank you​
    12·2 answers
  • Please help on this one?
    9·1 answer
  • What is the solution set in the open sentence with the given replacement set?
    7·1 answer
  • Solve the inequality and graph the solution<br> -10 &gt;= -2z
    11·1 answer
  • Write an equation of the line in slope-intercept form. (Pls answer fast)<br><br> Y=
    7·1 answer
  • Please help I’ll give points + brainalist
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!