The born-haber process is used to find out the enthalpy

Reference no: EM13244629

The Born-Haber process is used to determine the enthalpy of formation of common salts as it is the hardest process to measure. For KBr the enthalpy of formation follows this equation:

2 K(s) + Br2(g) ? 2 KBr(s)

Calculate the standard formation enthalpy of potassium bromide from
the following known standard enthalpies:

K(s) ? K(g) ?Hsub =89kJ
K(g) ? K+(g) + e- ?HI = 419 kJ
Br2(g) ? 2 Br(g) ?HD = 192.8 kJ
Br(g) + e- ? Br-(g) ?HEA = -325 kJ
KBr(s) ? K+(g) + Br-(g) ?HU = 691 kJ

Reference no: EM13244629

Questions Cloud

Derive the firms demand for investment in a period t : a. Based on the two-period model covered in class, write down thefirms budget constraint in period t. b. Derive the firm's demand for labor in period t as a function ofwages, interest rates and a.

Asoka recruited what group to serve as bureaucrats : In forming his government, Asoka recruited what group to serve as bureaucrats?

Compute the volume of ammonia required to bring the ph : Calculate the volume of ammonia required to bring the pH to 3.00 and to 8.00. Kb (NH3) = 1.8 x 10^-5.

Find what is the total value of the four units : Assume that when the price of good X is $10, each, I buy none. When the price is $9 each, I buy 1 per period. When the price is $8 each, I buy 2 per period. When the price is $7 each, I buy 3 per period.

The born-haber process is used to find out the enthalpy : The Born-Haber process is used to determine the enthalpy of formation of common salts as it is the hardest process to measure. For KBr the enthalpy of formation follows this equation

What is the energy stored by the capacitor : A parallel plate capacitor has square plates with sides of length 20 cm. The distance between the plates is 4 mm. The plates are charged up to 50volts, What is the energy stored by the capacitor

How does the competition affect the market demand : The U.S. Postal Service is facing increased competition from firms providing overnight delivery of packages and letters. Additional competition has emerged because messages can be sent via computers.

Explain reactions as spontaneous or nonspontaneous : Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Au3+(aq) + 3Ag(s) -----> Au(s) + 3Ag+(aq)c

Determine what is the size of the gdp gap : Suppose the MPC is 0.75 if the government increasesexpenditures by $200 billion how far does the economy grow if the government decreases taxes by $200 billion how far does the economy grow

User Account

All Pages