username2302349
Badges: 1
Rep:
?
#1
Report Thread starter 3 years ago
#1
I got an answer to this question but I'm not sure if it's right, so any help would be appreciated. Thanks.

CaO(s) + H2O(l) ------> Ca(OH)2(s) ΔH = -66kJmol-1
Ca(OH)2(s) + CO2(g) ------> CaCO3(s) + H2O(l) ΔH = -112kJmol-1
Calculate the ΔH for the following reaction:
CaCO3(s) ------> CaO(s) + CO2(g)

I got the answer as 178kJmol-1.
0
reply
RDB1826
Badges: 10
Rep:
?
#2
Report 3 years ago
#2
(Original post by cassie05)
I got an answer to this question but I'm not sure if it's right, so any help would be appreciated. Thanks.

CaO(s) + H2O(l) ------> Ca(OH)2(s) ΔH = -66kJmol-1
Ca(OH)2(s) + CO2(g) ------> CaCO3(s) + H2O(l) ΔH = -112kJmol-1
Calculate the ΔH for the following reaction:
CaCO3(s) ------> CaO(s) + CO2(g)

I got the answer as 178kJmol-1.
Yes! I've got that as well. +178kJmol-1.
0
reply
username2302349
Badges: 1
Rep:
?
#3
Report Thread starter 3 years ago
#3
Okay, thanks for replying!
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Harper Adams University
    Undergraduate Open Day Undergraduate
    Sun, 17 Nov '19
  • Trinity Laban Conservatoire of Music and Dance
    Contemporary Dance Undergraduate
    Tue, 19 Nov '19
  • University of Surrey
    All subjects except Veterinary Medicine and Guildford School of Acting Undergraduate
    Wed, 20 Nov '19

Which party will you be voting for in the General Election?

Conservatives (134)
18.56%
Labour (309)
42.8%
Liberal Democrats (143)
19.81%
Green Party (41)
5.68%
Brexit Party (21)
2.91%
Independent Group for Change (Change UK) (2)
0.28%
SNP (9)
1.25%
Plaid Cymru (6)
0.83%
Democratic Unionist Party (DUP) (1)
0.14%
Sinn Fein (1)
0.14%
SDLP (0)
0%
Ulster Unionist (1)
0.14%
UKIP (7)
0.97%
Other (8)
1.11%
None (39)
5.4%

Watched Threads

View All