ellaholcomb12p297vv ellaholcomb12p297vv

22-04-2020
Chemistry

contestada

How much thermal energy is needed to raise the temperature of 4g of water
from 25°C to 75°C if water has a specific heat of 4.186 J/gºC
1. 850,000J
2. 840,000J
3. 740,000)
4. 840)

Respuesta :

jokeoluwasola jokeoluwasola

25-04-2020

Answer:

837.2J

Explanation:

m=4g,c=4.186 J/g/C, change in temperature=75-25=50 degree Celsius Q=?

using the formula

Q=mxcx change in theta

Q=4x4.186x50

Q=837.2J

Answer Link

Otras preguntas

How does Pythagoras work?

What is a common cause of delayed heel off during gait?

Who is a mathematician

Which of the following statements regarding the epi-pen is correct?a. the epipen delivers a preset amount of the drugb. the adult auto-injector delivers .5-1mg

The mosquito species Aedes aegypti has a diploid chromosome number of 2n=6. How many chromosomes are present in an interphase cell in the antenna of an A. aeypt

If you train a rat to receive a food pellet every time you play a particular song, the food pellet is __________ and the tune is ___________.

Where should we refer Fans who inquire about the Oakland A's Locker Program?

Which item allows two AM–2 mat laying teams to start work in the middle of a runway and work in opposite directions towards the end of the runway?a. Typical key

Describe thyroid surgery post-op care after 48 hours

The starting dose of Allopurinol in Chronic Kidney Disease (CKD) stage 4 or worse (GFR <30 mL/min) is often:a) 100 mg dailyb) 200 mg dailyc) 300 mg dailyd) 4