zurzur92 zurzur92

04-03-2021
Chemistry

contestada

how much heat is needed to warm 250g of water from 22°C to 98°C ?

Respuesta :

vincentlephoko vincentlephoko

11-03-2021

Answer:

79'420J

Explanation:

We know mass 250g and

∆T=98°C -22°C

=76°C

The specific heat capacity for water is 4,18Zj/g°C

THEREFORE

∆H=250g•14,8j/g°C •76°C

=79'420J

Answer Link

Otras preguntas

What is the half-life of a radioisotope if 25.0 grams of an original 200.-gram sample of the isotope remains unchanged after 11.46 days? (1) 2.87 d (3) 11.46 d

True or false? After liberation, Latin Americans faced political chaos. This allowed military strongmen to rise to power. A. True B. False

Why does Mr. Jabez Wilson write so much in "The Red-Headed League"? A. He is filing a police report. B. He is copying an encyclopedia. C. He is a tax lawyer

Georgia O'Keefe was an American painter from Wisconsin. Whose detailed close-ups of flowers brought her world renown. WHAT IS WRONG WITH THESE SENTENCE..

Which terms best describe Kublai Khan? A. spiritualist and priest B. conqueror and builder C. astronomer and mathematician D. teacher and poet

Which of the following was NOT a reason for population growth in the Sun Belt? Choose one answer. a. New industrial opportunities b. Strong labor unions c.

Please help me ASAP! (8x-2y)+(3x-4y) A. 11x+8y B. 4x-y C. 11x-6y D. 5x+2y

Which sample of CO2 has a definite shape and a definite volume? (1) CO2(aq)(2) CO2(g) (3)CO2(l)(4) CO2(s)

The people _____ arrived late had difficulty finding seats. which who

What is the empirical formula for a compound with the molecular formula C6H12Cl2O2? (1) CHClO (3) C3H6ClO (2) CH2ClO (4) C6H12Cl2O2