1 files changed, 10 insertions, 0 deletions
diff --git a/965/CH2/EX2.65/65.sci b/965/CH2/EX2.65/65.sci
new file mode 100644
index 000000000..1245f5c42
--- /dev/null
+++ b/965/CH2/EX2.65/65.sci
@@ -0,0 +1,10 @@
+clc;
+clear all;
+disp("expression for rate")
+disp("k = k0*(1+a*t+b*t^2)")
+disp("considering steady state equation through hollow sphere r= r and thickness dr/dt, ")
+disp("Q = -k*A*dt/dr = -k*4*%pi*r^2*dt/dr =-k0*(1+a*t+b*t^2)*4*%pi*r^2*dt/dr")
+disp("thus, Q/4%pi * dr/r^2=-k0*(1+a*t+b*t^2)*dt ")
+disp("integrating the above equation in range r1 to r2 and t1 to t2 respectively, we get")
+disp("Q = (4*pi*r1*r2/(r1-r2))*k0*(t1-t2)*(1+a(t1+t2)/2)+b*(t1^2+t2^2+t2*t2)/3)")
+