Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
992 views
in Chemistry by (36.0k points)
closed by

In a reaction, 2.5 kJ of heat is released from the system and 5.5 kJ of work is done on the system. Find ΔU.

1 Answer

+1 vote
by (34.5k points)
selected by
 
Best answer

Given : 

Q = -2.5 kJ 

(since heat is released) 

W= + 5.5 kJ 

(since the work will be of compression) 

ΔU = ? 

ΔU = Q + W 

= -2.5 + 5.5 

= +3 kJ 

Internal energy of the system will increase by 3 kJ.

∴ ΔU = 3 kJ

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...