n9es8CarolGraz n9es8CarolGraz

23-01-2017
Physics

contestada

When 0.250 moles of licl are added to 200.0g of water in a constant pressure?

Respuesta :

scme1702 scme1702

31-01-2017

Lithium Chloride releases 37 kJ of energy per mole when dissolved in water.
Energy released = 0.25 x 37
= 9.25 kJ
= 9,250 J
Temperature change of water may be calculated using
ΔH = mCpΔT
Cp = 4.18 J/g

ΔT = 9,250 / (200 x 4.18)
ΔT = 11.1 °C

Answer Link

Otras preguntas

8. The area of a rectangular painting is given by the trinomial x2 + 4x – 21. What are the possible dimensions of the painting? Use factoring. (1 point)

If the circumference of a circle is 24, and the angle measure of an arc is 120°, which is the length of the arc? A. 3 B. 6 C. 8 D. 12

Ore deposits are formed when__________. A) hot water enriched with minerals moves laterally, cools down, and deposits the dissolved minerals B) hot water enri

Does the magnetic field- due to the current carrying wire- curve in a clockwise or counter-clockwise direction in the area between the poles of the horseshoe ma

Sub-Saharan Africa's population growth is _____. 1.decreasing 2.negative 3.positive 4.stagnant

Outcome Payout HHH $10 HHT $3 HTH $0 HTT -$3 TTT $10 THH -$3 THT $0 TTH $0 Kara is playing a game where she flips a coin 3 times. She wins and loses different a

How are two atom of the same element alike?

If a/b=p/q, then a + b/b = p + b/q. True False

Transuranic waste comes mostly from used clothing and medical wastes. True Or False ???

What value of c makes the polynomial below a perfect square? x2 + 10x + c c = A. 25 B. 20 C. 5 D. 100